Earlier quoted context omitted.
OP is in the UK where every circuit has a GFCI, making it pretty much impossible to get an electrical shock due to isolation failure (in a typical year, not a single person dies from electrocution in UK homes). Fire is more of a concern, but this is indeed internally fused and the IC has both overcurrent and overheat protection - both of which are effectively 'free', so there are no cost savings to not include them.
Gotcha, there are still locations where non-GFCI receptacles are allowed in residential homes in the US, they’re required in basements, garages, exteriors, and within a certain distance of a sink/plumbing tap but not in bedrooms or general ‘living space’. AFCIs are required in most areas but don’t protect against ground faults, which aren’t as concerning with a device that is injection molded plastic anyways. The tri…
Re: Teardown of Apple 40W dynamic power adapter with 60W max
#191In the last 4 years china has really cracked down on dangerous products, so anything newly made will generally have at least the basics of protections. For example all products with batteries have over and under voltage protection with a dedicated chip rather than some microcontroller hopefully stopping the charge at the right time as used to be done in 2018 to save a few cents.